Improvement in spark-arresters for locomotives



Baltimore, in the county of Baltimore and 1 Locomotives, of which thefollowing is a specbetter adapted to the purpose in view.

' is shifted from the cab-box of engine by suitable intermediateconnections. cent screen that arrests sparks andcinders WILLIAMMARTI-EN, or BALTIMORE, MARYLAND.

IMPROVEMENT IN SPARK-ARRESTERS FCR LOCCMOTIVES.

Specificationforming part of Letters Patent No. 133,655, dated December3, 1872.

CASE A.

To all whom it may concern:

Be it known that I, WILLIAM MARTIEN, of

State of Maryland, have invented a Spark- Arrester and Smoke-Consumerfor Passengerification:

The invention consists in arrestingthesmoke, sparks, and cinders at thetop of smoke-stack and forcing them by an air-draft from front oflocomotive down a tube and into a chamber where the cinders are stoppedwhile the smoke. is carried around and emptied into fire-box. It alsoconsists in a peculiar construction of cinder-pit and smoke-stack, bywhich they are In the drawing, the figure is a side elevation, partlybroken out. r

A represents alocomotive-boiler; B, the firebox; 0, the smoke -box; D,the ordinary smoke-stack; and E E, the exhaust-pipes, discharging intosmoke box or stack to increase drat't. F is a hollow head, on which isplaced a pivoted and movable hood, d, that d is a subjawhen stack israised. This head F has a neck, f, and a pipe, f, passing around boilerto a cinder-pit, G. The latter connects with another cinder-pit, G,nearer the lire-box. H H are sieves in the sides of part 9 that connectcinder-pits G G, and I I are side pipes leadin g from thesesieve-apertures to the fire-box B. The head F, neck f, and pipe D arefitted telescopically on the parts D, F, so that when the tires arebeing started and the steam raised as greata draft as possible may besecured. his a sieve inside of cinder-box G, which takes off the surpluscurrent of air.

The operation is as follows: The smoke,

sparks, and cinders passing from fire-box B move to the smoke-box O,where the draft is increased by the issue of steam from theexhaust-pipes E E; then, passing up stack D, they are arrested by thehood (1, met by the counter-draft from front of locomotive, and carriedthrough head F and pipe ff to cinder-pit G, where the coarsest cinderslodge, while the finer ones pass onto pit G. The smoke, passing throughsieves H H and pipes I I, is discharged into fire-box B.

. c c are pipes communicating with exhaustpipes E E, and arranged todischarge jets of steam upon the hot cinders in pits G G so as toextinguish combustion promptly. The cinder-pits are provided with bottomcomposed of folding slats, which may be opened when it is desired todischarge the cinders.

It will be observed that the air which is gathered in head F by themovement of the locomotive passes into cinder-pit G, divides in the neck9, and moves into fire-box in three separate columns through pit G andpipes I I. Here it forms a junction with the ordinary draft, andaugments the force of the circulating current to a very considerableextent.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The smoke-stack D, combined with hood 0?, head F, pipe ff, cindcnpitsG G, sieves H, and pipes I 1 leading into fire-box, as and for thepurpose described.

2. The smoke-stack D and head F telescopically jointed to parts 'D F, asand for the purpose described.

3. The arrangement of pipes e e in connection with exhaust-pipes EB andpitsG G, so as to discharge jets of steam into the latter and promptlyextinguish combustion of cinders, in the manner described. WILLIAMMARTIEN.

Witnesses:

THos. D. D. OURAND, CHAS. AvPETTIT.

